CN112392541A - Soil material backfill tamping system and process for mining area restoration - Google Patents
Soil material backfill tamping system and process for mining area restoration Download PDFInfo
- Publication number
- CN112392541A CN112392541A CN202011266692.6A CN202011266692A CN112392541A CN 112392541 A CN112392541 A CN 112392541A CN 202011266692 A CN202011266692 A CN 202011266692A CN 112392541 A CN112392541 A CN 112392541A
- Authority
- CN
- China
- Prior art keywords
- tamping
- vertical
- rod
- fixed
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002689 soil Substances 0.000 title claims abstract description 58
- 238000005065 mining Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000008569 process Effects 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 title claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000005056 compaction Methods 0.000 claims 12
- 238000005096 rolling process Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 abstract 1
- 239000011800 void material Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000003351 stiffener Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a soil backfill tamping system and a soil backfill tamping process for mining area restoration, wherein the soil backfill tamping system comprises a flat plate, a vertical plate, a moving unit, a position fixing unit, a lateral tamping unit and a vertical tamping unit; the bottom four corners of the flat plate are respectively provided with a mobile unit, wherein two mobile units are provided with position fixing units for limiting the movement of positions, the middle part of the bottom side of the flat plate is fixed with a vertical plate, the side surface of the vertical plate is provided with a vertical tamping unit, the vertical tamping unit is provided with a ramming hammer, and the front end of the surface of the flat plate is provided with a through groove; lateral direction tamping unit includes lateral direction tamping motor, inertia rim plate, inertia axle, swing arm one, vertical pole, round pin axle one, montant, pivot, installation piece, turning block, and the rigidity after convenient removal and removal guarantees going on smoothly of ramming earth work to can carry out vertical tamping work by the efficient, and can tamp to the lateral void soil, the ramming earth direction can satisfy the demand.
Description
Technical Field
The invention relates to the technical field of coal mine soil backfill, in particular to a soil backfill tamping system and a soil backfill tamping process for repairing a mining area.
Background
A large number of mine holes or mine pits are left after the coal is dug, the mine holes or mine pits need to be backfilled with soil regardless of the risk of geological disasters, the backfilling of the soil in the mine holes or mine pits is needed, the density of the backfilled soil is less than that of the soil beside the mine holes or mine pits, the backfilled soil is sunken behind the mine holes or mine pits, the soil needs to be tamped during backfilling, the soil is generally tamped up and down, the tamping efficiency of the tamping devices is low, and in the case of a transverse mine hole, the lateral tamping work is difficult.
Disclosure of Invention
The invention aims to overcome the existing defects and provides a soil material backfilling and tamping system and process for repairing a mining area, which are convenient to move and fix the moved position, ensure the successful tamping work, can efficiently carry out the vertical tamping work, can tamp lateral virtual soil, can meet the requirements in the tamping direction, and can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a soil backfilling and tamping system for repairing a mining area comprises a flat plate, a vertical plate, a moving unit, a position fixing unit, a lateral tamping unit and a vertical tamping unit;
the bottom four corners of the flat plate are respectively provided with a mobile unit, wherein two mobile units are provided with position fixing units for limiting the movement of positions, the middle part of the bottom side of the flat plate is fixed with a vertical plate, the side surface of the vertical plate is provided with a vertical tamping unit, the vertical tamping unit is provided with a ramming hammer, and the front end of the surface of the flat plate is provided with a through groove;
the lateral tamping unit comprises a lateral tamping motor, an inertia wheel disc, an inertia shaft, a first rotating rod, a longitudinal rod, a first pin shaft, a vertical rod, a rotating shaft, mounting blocks, rotating blocks, connecting rods, a lateral tamping plate, a bottom cross rod, an arc-shaped block and a reinforcing rod, wherein two corresponding mounting blocks are fixed on two sides of the front end of the flat plate, the rotating blocks are movably connected between the two mounting blocks through the rotating shaft, the bottom of each rotating block is connected with the lateral tamping plate through the two connecting rods, the arc-shaped block is fixed in the middle of the rear side of the lateral tamping plate, the lateral tamping motor is fixedly connected with one end of the through groove, the longitudinal rod is fixed in the middle of the through groove, an output shaft of the lateral tamping motor is connected with one end of the inertia shaft, the inertia wheel disc is fixed in the middle of the inertia shaft, the other end of the inertia shaft is rotatably connected with the middle of the longitudinal rod, and the inertia shaft penetrates through the, the side face of the other end of the first rotating rod is fixedly provided with a first pin shaft perpendicular to the first rotating rod, the first pin shaft is movably connected with the top end of the vertical rod, the bottom end of the vertical rod penetrates through the through groove, two sides of the bottom horizontal rod are movably connected with one end of two bottom horizontal rods respectively, the other end of the front bottom horizontal rod is movably connected with the arc-shaped block, the other end of the rear bottom horizontal rod is movably connected with the bottom end of the reinforcing rod, and the top end of the reinforcing rod is fixed to the bottom of the flat plate.
The moving unit is convenient to move the tamping device to a position to be tamped, the position fixing unit can fix the tamping device after moving, the whole device is prevented from moving in the soil tamping process, and the vertical tamping unit can drive the soil tamping hammer to automatically and efficiently tamp the deficient soil on the lower side;
thereby side direction tamping motor drives inertia shaft and rotates and drive a rotation pole, a rotation pole can drive the montant and move from top to bottom, and the montant shifts up, can drive the one end tilt-up that two bottom horizontal poles are close to the montant, because the stiffener rigidity to drive side direction tamping plate and withdraw, and the montant moves down, then side direction tamping plate can be taken and outwards tamp soil, thereby realizes the tamping operation of side direction, and inertia wheel dish can increase inertia, guarantees the dynamics of ramming soil.
Furthermore, the mobile unit comprises supporting legs, wheel seats, wheel shafts and mobile wheels, the tops of the supporting legs are fixed at four corners of the bottom of the flat plate, the bottom ends of the supporting legs are fixed with the inverted U-shaped wheel seats, and the wheel seats are rotatably connected with the middle of the mobile wheels through the wheel shafts. The movable wheel is movably installed through the wheel seat and the wheel shaft, and the position of the whole device can be conveniently moved through the movable wheel.
Furthermore, the moving unit also comprises a rib plate, and a triangular rib plate is fixed between the top side surface of the supporting leg and the bottom surface of the flat plate. The ribbed slab can improve the area of being connected of landing leg and flat board to improve the fixed strength to the landing leg.
Further, the position fixing unit includes L shaped plate, stopper, fixing base, electric putter one, inserted bar and spine, the bottom side of landing leg is fixed with the L shaped plate, the bottom outside of L shaped plate is fixed with the stopper, the top outside of L shaped plate is fixed with the fixing base, the top of electric putter one is connected to the bottom of fixing base, and the bottom mounting of electric putter one has the inserted bar, the inserted bar passes spacing hole on the stopper and the spine is connected to the bottom. The electric push rod extends to drive the sharp thorn at the bottom of the inserting rod to be inserted into the soil layer, the flat plate is conveniently fixed, and the position moving during working is avoided.
Further, the vertical tamping unit comprises a vertical tamping motor, a driving gear, a driven gear, side slide rails, a transverse slide block, a vertical slide plate, slide bars, transverse slide grooves, a rotating disc and a motor shaft, the vertical tamping motor is fixed on the front side of the vertical plate, an output shaft of the vertical tamping motor is connected with the driving gear, the middle part of the vertical plate is rotatably connected with the motor shaft, the driven gear meshed with the driving gear is fixed on the front end of the motor shaft, the vertical side slide rails are respectively arranged on two sides of the rear end surface of the vertical plate, the slide bars slidably connected with the side slide rails are arranged on two sides of the vertical slide plate, the transverse slide grooves are arranged in the middle part of the vertical slide plate, the transverse slide block is transversely slidably connected on the inner side of the transverse slide grooves, circular through grooves are arranged in the middle part of the transverse slide block, the rotating disc is rotatably connected in the circular through, the bottom of the vertical sliding plate is connected with a rammer.
The vertical tamping motor works, the motor shaft can be driven to rotate through the meshing transmission of the driving gear and the driven gear, the motor shaft drives the rotating disc to rotate, the motor shaft is located at the eccentric position of the rotating disc, the transverse sliding block can be driven to move up and down and left and right, the transverse sliding of the transverse sliding block and the transverse sliding groove can offset the transverse moving distance, and the sliding strips and the side sliding rails slide up and down, so that the vertical sliding plate can move up and down regularly, and finally the tamping hammer at the bottom of the vertical sliding plate is driven to perform tamping operation.
Further, vertical tamping unit includes vertical tamping motor, solid fixed ring, swing arm two, movable rod, upper and lower movable rod, activity post and plectane, gu fixed ring fixed connection drum is passed through to the side of riser, the inside bottom side of drum is equipped with two plectanes, sliding hole and activity post upper and lower sliding connection on the plectane, the top center of activity post is fixed with upper and lower movable rod, the top inboard of drum is fixed with vertical tamping motor, the one end of vertical tamping motor's output shaft fixed connection swing arm two, the one end of the other end swing joint movable rod of swing arm two, the top of the upper and lower movable rod of other end swing joint of movable rod, the rammer hammer is connected to the bottom of activity post.
The vertical tamping motor works, the rotating rod II drives the movable rod to move up and down, so that the movable rod drives the movable column to slide up and down in the sliding hole in the circular plate, and finally the movable column drives the bottom tamping hammer to tamp soil.
Further, the vertical tamping unit further comprises a spring and a middle limiting ring, the middle limiting ring is fixedly sleeved on the outer side of the middle of the movable column, and the middle limiting ring is connected with the two circular plates through the spring respectively. The spring is fixed through the middle limiting ring, and the spring can increase the buffering of the rammer hammer during working.
Further, the vertical tamping unit comprises a vertical tamping motor, a long shaft, a long rod, a short rod, a second electric push rod, a hinged support, a push rod fixing plate, a fixed longitudinal rod, a tamping rod, a friction wheel and a tamping rod limiting ring, the side surface of the vertical plate is fixed with the long shaft, the long shaft is movably connected with one end of the long rod, the other end of the long rod is fixedly connected with one end of the short rod, the other end of the short rod is movably connected with the telescopic end of the second electric push rod, the fixed end of the second electric push rod is movably connected with the side surface of the push rod fixing plate through the hinged support, the push rod fixing plate is fixed on the side surface of the vertical plate, the joint of the long rod and the short rod is rotatably connected with one friction wheel, the side surface of the vertical plate is also fixed with the vertical tamping motor, the output shaft of the vertical tamping motor is, and be equipped with vertical ramming mass pole between two friction pulleys, the side of riser is fixed with the ramming mass pole spacing ring through fixed vertical pole, sliding connection about spacing hole on the ramming mass pole spacing ring and the ramming mass pole, the bottom fixed connection rammer hammer of ramming mass pole.
The V-shaped rod that electric putter two extensions can drive stock and quarter butt and constitute moves to make left friction pulley be close to the friction pulley on right side, and vertical tamping motor drives the friction pulley on right side and rotates, and two friction pulleys will tamp the pole and drive and shift up this moment, then electric putter two shortens, and two friction pulley separations, send out the rammer ram this moment, and the rammer ram whereabouts is rammed earth, and the rammer ram spacing ring is used for avoiding the skew position of rammer ram.
Further, the vertical tamping unit comprises a vertical tamping motor, an inverted U-shaped frame, a bottom sliding chute, a fixed transverse shaft, an upper eccentric gear, a movable transverse shaft, a lower eccentric gear, sliding rods, a bottom connecting rod and a tamping rod, wherein the side surface of the vertical plate is fixedly connected with the inverted U-shaped frame, the bottom sliding chutes are arranged at the lower sides of the two ends of the inverted U-shaped frame, the sliding rods are respectively and vertically and slidably connected in the two bottom sliding chutes, the tops of the sliding rods are connected with the tops of the bottom sliding chutes through a tension spring, the bottom ends of the two sliding rods are connected through the bottom connecting rod, the bottom center of the bottom connecting rod is connected with a tamping hammer through the tamping rod, the tops of the two sliding rods are rotatably connected with the two ends of the movable transverse shaft, the middle part of the movable transverse shaft is fixedly connected with the eccentric position of the lower eccentric gear, the top of the inner side of the inverted U-shaped frame is rotatably, the upper eccentric gear is meshed with the lower eccentric gear, and one end of the fixing cross shaft penetrates through one side of the inverted U-shaped frame and is connected with an output shaft of a vertical tamping motor fixed on the outer side of the inverted U-shaped frame.
The farthest points of the upper eccentric gear and the lower eccentric gear are synchronously meshed, the sliding rod always tends to be upward due to the action of the extension spring, the fixed cross shaft is driven to rotate by the operation of the vertical tamping motor, and when the farthest points of the upper eccentric gear and the lower eccentric gear are meshed, the movable cross shaft is pushed to move downwards, so that the soil ramming hammer moves downwards to ram soil.
The tamping process of the earth backfill tamping system for repairing the mining area comprises the following steps;
the method comprises the following steps: the tamping device is moved to a working position, and the tamping device is conveniently moved to an area where soil is backfilled through the moving wheels of the flat plate bottom moving unit;
step two: the position is fixed, and an electric push rod of the position fixing unit is controlled to extend, so that a spine at the bottom of an inserting rod is driven to be inserted into a soil layer, the position of a flat plate is conveniently fixed, and the position is prevented from moving in the working process;
step three: tamping the soil on the lower side, and driving a soil tamping hammer at the bottom of the vertical tamping unit to reciprocate up and down by using a vertical tamping motor to tamp the soil;
step four: tamping the lateral earth materials, and driving a lateral tamping plate to tamp the lateral earth materials by using a lateral tamping motor through a series of transmission;
step five: the electric push rod of the position fixing unit is shortened to enable the flat plate to move, and then the ramming position is changed again through the moving unit.
Compared with the prior art, the invention has the beneficial effects that: this system and technology are tamped with native material backfill to mining area restoration has following benefit:
1. the mobile unit conveniently moves the tamping device to the position needing to be tamped, the position fixing unit can fix the tamping device after moving, the tamping operation of the virtual soil on the lower side can be carried out by driving the tamping hammer to move along the whole device position in the process of avoiding tamping the soil.
2. Thereby side direction tamping motor drives inertia shaft and rotates and drive a rotation pole, a rotation pole can drive the montant and move from top to bottom, and the montant shifts up, can drive the one end tilt-up that two bottom horizontal poles are close to the montant, because the stiffener rigidity to drive side direction tamping plate and withdraw, and the montant moves down, then side direction tamping plate can be taken and outwards tamp soil, thereby realizes the tamping operation of side direction, and inertia wheel dish can increase inertia, guarantees the dynamics of ramming soil.
3. Convenient removal and the rigidity after removing are fixed, guarantee going on smoothly of ramming earth work to can carry out vertical tamping work by the efficient, and can tamp lateral deficient soil, the ramming earth direction can satisfy the demand
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic side view of the FIG. 1 embodiment of the present invention;
FIG. 3 is a schematic side plan view of the structure of FIG. 1 according to the present invention;
FIG. 4 is a rear side view of the FIG. 1 embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 6 is a schematic diagram of a third embodiment of the present invention;
fig. 7 is a schematic structural diagram of a fourth embodiment of the present invention.
In the figure: 1 flat plate, 2 vertical plates, 3 moving units, 31 supporting legs, 32 ribbed plates, 33 wheel seats, 34 wheel shafts, 35 moving wheels, 4 position fixing units, 41L-shaped plates, 42 limiting blocks, 43 fixing seats, 44 electric push rod I, 45 inserted rods, 46 spines, 5 lateral tamping units, 51 lateral tamping motors, 52 inertial wheel discs, 53 inertial shafts, 54 rotating rod I, 55 longitudinal rods, 56 pin shaft I, 57 vertical rods, 58 rotating shafts, 59 mounting blocks, 510 rotating blocks, 511 connecting rods, 512 lateral tamping plates, 513 bottom cross rods, 514 arc blocks, 515 reinforcing rods, 6 vertical tamping units, 61 vertical tamping motors, 62 driving gears, 63 driven gears, 64 side sliding rails, 65 transverse sliding blocks, 66 vertical sliding plates, 67 sliding bars, 68 transverse sliding grooves, 69 rotating discs, 610 motor shafts, 611 fixing rings, 612 rotating rod II, 613 moving rods, 614 upper and lower moving rods, 615 moving columns, 616 springs, 617 limiting rings, 618 round plate, 621 long shaft, 622 long rod, 623 short rod, 624 electric push rod II, 625 hinge support, 626 push rod fixing plate, 627 fixing longitudinal rod, 628 tamping rod, 629 friction wheel, 630 tamping rod limiting ring, 631 inverted U-shaped frame, 632 bottom sliding groove, 633 fixing transverse shaft, 634 upper eccentric gear, 635 movable transverse shaft, 636 lower eccentric gear, 637 sliding rod, 638 bottom connecting rod, 639 tamping rod, 7 through groove and 8 tamping hammer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the first embodiment, referring to fig. 1-4, the present embodiment provides a technical solution: the earth material backfill tamping system for mining area restoration comprises a flat plate 1, a vertical plate 2, a moving unit 3, a position fixing unit 4, a lateral tamping unit 5 and a vertical tamping unit 6;
the bottom four corners of the flat plate 1 are respectively provided with a mobile unit 3, wherein two mobile units 3 are provided with position fixing units 4 for limiting the position to move, the middle part of the bottom side of the flat plate 1 is fixed with a vertical plate 2, the side surface of the vertical plate 2 is provided with a vertical tamping unit 6, the vertical tamping unit 6 is provided with a soil tamping hammer 8, and the front end of the surface of the flat plate 1 is provided with a through groove 7;
the lateral tamping unit 5 comprises a lateral tamping motor 51, an inertia wheel disc 52, an inertia shaft 53, a first rotating rod 54, a longitudinal rod 55, a first pin shaft 56, a vertical rod 57, a rotating shaft 58, mounting blocks 59, rotating blocks 510, connecting rods 511, a lateral tamping plate 512, a bottom cross rod 513, an arc-shaped block 514 and a reinforcing rod 515, wherein two corresponding mounting blocks 59 are fixed on two sides of the front end of the flat plate 1, the rotating blocks 510 are movably connected between the two mounting blocks 59 through the rotating shaft 58, the bottom of the rotating blocks 510 is connected with the lateral tamping plate 512 through the two connecting rods 511, the arc-shaped block 514 is fixed in the middle of the rear side of the lateral tamping plate 512, the lateral tamping motor 51 is fixedly connected with one end of the through groove 7, the longitudinal rod 55 is fixed in the middle of the through groove 7, the output shaft of the lateral tamping motor 51 is connected with one end of the inertia shaft 53, the inertia wheel disc 52 is fixed in the middle of the inertia shaft 53, and the other end, the inertia shaft 53 penetrates through the longitudinal rod 55 and is fixedly connected with one end of the first rotating rod 54, a first pin shaft 56 perpendicular to the first rotating rod 54 is fixed on the side face of the other end of the first rotating rod 54, the first pin shaft 56 is movably connected with the top end of a vertical rod 57, the bottom end of the vertical rod 57 penetrates through the through groove 7, two sides of the bottom end of the vertical rod 57 are respectively movably connected with one end of the two bottom cross rods 513, the other end of the front bottom cross rod 513 is movably connected with the arc-shaped block 514, the other end of the rear bottom cross rod 513 is movably connected with the bottom end of the reinforcing rod 515, and the top end of the reinforcing rod 515.
The moving unit 3 is convenient to move the tamping device to a position to be tamped, the position fixing unit 4 can fix the tamping device after moving, the whole device is prevented from moving in the soil tamping process, and the vertical tamping unit 6 can drive the soil tamping hammer 8 to automatically and efficiently tamp the deficient soil on the lower side;
thereby side direction tamping motor 51 drives inertia axle 53 and rotates and drive a swing arm 54 and rotate, swing arm 54 can drive montant 57 activity from top to bottom, montant 57 shifts up, can drive two bottom horizontal poles 513 and be close to the one end tilt-up of montant 57, because stiffener 515 rigidity, thereby drive side direction tamping plate 512 and withdraw, and montant 57 shifts down, then side direction tamping plate 512 can be taken outside rammed earth, thereby realize the operation of tamping of side direction, inertia can be increased to inertia rim plate 52, guarantee the power of ramming earth.
The moving unit 3 comprises supporting legs 31, wheel seats 33, wheel shafts 34 and moving wheels 35, the tops of the supporting legs 31 are fixed at four corners of the bottom of the flat plate 1, the bottom ends of the supporting legs 31 are fixed with the inverted U-shaped wheel seats 33, and the wheel seats 33 are rotatably connected with the middle parts of the moving wheels 35 through the wheel shafts 34. The movable wheel 35 is movably installed through the wheel seat 33 and the wheel shaft 34, and the position of the whole device can be conveniently moved through the movable wheel 35.
The moving unit 3 further comprises a rib 32, and a triangular rib 32 is fixed between the top side of the leg 31 and the bottom surface of the plate 1. The rib 32 can increase the connecting area of the leg 31 and the flat plate 1, thereby increasing the fixing strength of the leg 31.
The position fixing unit 4 includes an L-shaped plate 41, a limiting block 42, a fixing seat 43, a first electric push rod 44, an insertion rod 45 and a spine 46, the bottom end side of the supporting leg 31 is fixed with the L-shaped plate 41, the bottom outside of the L-shaped plate 41 is fixed with the limiting block 42, the top outside of the L-shaped plate 41 is fixed with the fixing seat 43, the bottom of the fixing seat 43 is connected with the top end of the first electric push rod 44, the bottom end of the first electric push rod 44 is fixed with the insertion rod 45, and the insertion rod 45 penetrates through the limiting hole in the limiting block 42 and the spine 46 is connected. The first electric push rod 44 extends to drive the spine 46 at the bottom of the inserting rod 45 to insert into the soil layer, so that the position of the flat plate 1 is conveniently fixed, and the position movement during working is avoided.
The vertical tamping unit 6 comprises a vertical tamping motor 61, a driving gear 62, a driven gear 63, side slide rails 64, a transverse slide block 65, a vertical slide plate 66, slide bars 67, a transverse slide groove 68, a rotating disc 69 and a motor shaft 610, wherein the vertical tamping motor 61 is fixed on the front side of the vertical plate 2, the driving gear 62 is connected with an output shaft of the vertical tamping motor 61, the motor shaft 610 is rotatably connected with the middle part of the vertical plate 2, the driven gear 63 meshed with the driving gear 62 is fixed on the front end of the motor shaft 610, the vertical side slide rails 64 are respectively arranged on two sides of the rear end surface of the vertical plate 2, the slide bars 67 slidably connected with the side slide rails 64 are arranged on two sides of the vertical slide plate 66, the transverse slide groove 68 is arranged on the middle part of the vertical slide plate 66, the transverse slide block 65 is transversely slidably connected with the inner side of the transverse slide groove 68, the circular slide groove 65 is provided with a circular through groove, the, the bottom of the vertical sliding plate 66 is connected with a rammer 8.
The vertical tamping motor 61 works, the motor shaft 610 can be driven to rotate through the meshing transmission of the driving gear 62 and the driven gear 63, the motor shaft 610 drives the rotating disc 69 to rotate, the motor shaft 610 is located at the eccentric position of the rotating disc 69, the transverse sliding block 65 can be driven to move up and down and left and right, the transverse sliding distance can be offset by the transverse sliding of the transverse sliding block 65 and the transverse sliding groove 68, the sliding strip 67 and the side sliding rail 64 slide up and down, so that the vertical sliding plate 66 can move up and down regularly, and finally the soil tamping hammer 8 at the bottom of the vertical sliding plate 66 is driven to perform tamping operation.
In the second embodiment, referring to fig. 5, the present embodiment provides a technical solution: the soil backfill tamping system for mining area restoration has the same structure as the first embodiment, and is characterized in that the vertical tamping unit 6 comprises a vertical tamping motor 61, a fixed ring 611 and a rotating rod two 612, the vertical plate 2 is fixedly connected with a cylinder through a fixing ring 611, two circular plates 618 are arranged on the bottom side of the interior of the cylinder, sliding holes in the circular plates 618 are connected with the movable column 615 in a vertically sliding mode, the upper movable rod 614 and the lower movable rod 614 are fixed at the center of the top of the movable column 615, a vertical tamping motor 61 is fixed on the inner side of the top end of the cylinder, an output shaft of the vertical tamping motor 61 is fixedly connected with one end of a second rotating rod 612, the other end of the second rotating rod 612 is movably connected with one end of the movable rod 613, the other end of the movable rod 613 is movably connected with the top end of the upper movable rod 614 and the bottom end of the movable column 615 is connected with a tamping hammer 8.
The vertical tamping motor 61 works, the rotating rod II 612 drives the movable rod 613 to move up and down, so that the movable column 615 is driven by the upper and lower movable rods 614 to slide up and down in the sliding hole on the circular plate 618, and finally the movable column 615 drives the tamping hammer 8 at the bottom to perform tamping operation.
The vertical tamping unit 6 further comprises a spring 616 and a middle limiting ring 617, the middle limiting ring 617 is fixedly sleeved on the outer side of the middle part of the movable column 615, and the middle limiting ring 617 and the two circular plates 618 are respectively connected through the spring 616. The spring 616 is fixed by the middle stop ring 617, and the spring 616 can increase the buffering of the rammer 8 during operation.
In the third embodiment, referring to fig. 6, the present embodiment provides a technical solution: the construction of the ramming system for earth backfill used in mining area restoration is substantially the same as that of the first embodiment, except that the vertical ramming unit 6 comprises a vertical ramming motor 61, a long shaft 621, a long shaft 622, a short shaft 623, an electric push rod II 624, a hinge support 625, a push rod fixing plate 626, a fixed longitudinal rod 627, a ramming rod 628, a friction wheel 629 and a ramming rod limiting ring 630, the side surface of the vertical plate 2 is fixed with the long shaft 621, the long shaft 621 is movably connected with one end of the long shaft 622, the other end of the long shaft 622 is fixedly connected with one end of the short shaft 623, the other end of the short shaft 623 is movably connected with the telescopic end of the electric push rod II 624, the fixed end of the electric push rod II 624 is movably connected with the side surface of the push rod fixing plate 626 through the hinge support 625, the push rod fixing plate 626 is fixed on the side surface of the vertical plate 2, the joint of the long shaft 622 and the short shaft 623 is, the output shaft of the vertical tamping motor 61 is connected with another friction wheel 629, the two friction wheels 629 are horizontally arranged correspondingly, a vertical tamping rod 628 is arranged between the two friction wheels 629, the side surface of the vertical plate 2 is fixed with a tamping rod limiting ring 630 through a fixed longitudinal rod 627, a limiting hole on the tamping rod limiting ring 630 is vertically and slidably connected with the tamping rod 628, and the bottom end of the tamping rod 628 is fixedly connected with the soil rammer 8.
The second electric push rod 624 extends to drive the V-shaped rod composed of the long rod 622 and the short rod 623 to move, so that the friction wheel 629 on the left side is close to the friction wheel 629 on the right side, the vertical tamping motor 61 drives the friction wheel 629 on the right side to rotate, at the moment, the two friction wheels 629 drive the tamping rod 628 to move upwards, then the second electric push rod 624 is shortened, the two friction wheels 629 are separated, at the moment, the tamping rod 628 is sent out, the tamping hammer 8 falls down to tamp soil, and the tamping rod limiting ring 630 is used for avoiding the tamping rod 628 from deviating from the position.
In a fourth embodiment, referring to fig. 7, the present embodiment provides a technical solution: the earth material backfilling and tamping system for mining area restoration has the same structure as the first embodiment, and is characterized in that the vertical tamping unit 6 comprises a vertical tamping motor 61, an inverted U-shaped frame 631, a bottom chute 632, a fixed transverse shaft 633, an upper eccentric gear 634, a movable transverse shaft 635, a lower eccentric gear 636, sliding rods 637, bottom connecting rods 638 and tamping rods 639, the side surfaces of the vertical plates 2 are fixedly connected with the inverted U-shaped frame 631, the bottom chutes 632 are arranged on the lower sides of the two ends of the inverted U-shaped frame 631, the sliding rods 637 are respectively connected in the two bottom chutes 632 in an up-and-down sliding manner, the tops of the sliding rods 637 are connected with the tops of the bottom chutes 632 through tension springs, the bottom ends of the two sliding rods 637 are connected through the bottom connecting rod 638, the bottom center of the bottom connecting rod 638 is connected with a tamping hammer 8 through the tamping rods 639, the tops of the two sliding rods 637 are rotatably connected, the middle part of the movable cross shaft 635 is fixedly connected with the eccentric position of the lower eccentric gear 636, the top of the inner side of the inverted U-shaped frame 631 is rotatably connected with a fixed cross shaft 633, the fixed cross shaft 633 is fixedly connected with the eccentric position of the upper eccentric gear 634, the upper eccentric gear 634 is meshed with the lower eccentric gear 636, and one end of the fixed cross shaft 633 penetrates through one side of the inverted U-shaped frame 631 and is connected with an output shaft of the vertical tamping motor 61 fixed on the outer side of the inverted U-shaped frame 631.
The farthest points of the upper eccentric gear 634 and the lower eccentric gear 636 are synchronously meshed, the slide bar 637 always tends to be upward due to the action of the tension spring, the fixed cross shaft 633 is driven to rotate by the operation of the vertical tamping motor 61, and when the farthest points of the upper eccentric gear 634 and the lower eccentric gear 636 are meshed, the movable cross shaft 635 is pushed to move downwards, so that the soil ramming hammer 8 moves downwards to tamp soil.
Referring to fig. 1-7, the tamping process of the earth backfill tamping system for repairing mining areas includes the following steps;
the method comprises the following steps: moving the tamping device to a working position, and conveniently moving the tamping device to an area where soil is backfilled through the moving wheels 35 of the moving unit 3 at the bottom of the flat plate 1;
step two: the position is fixed, and the electric push rod I44 of the position fixing unit 4 is controlled to extend, so that the spine 46 at the bottom of the inserting rod 45 is driven to be inserted into the soil layer, the position of the flat plate 1 is conveniently fixed, and the position is prevented from moving in the working process;
step three: tamping the soil on the lower side, and driving a soil ramming hammer 8 at the bottom of the vertical ramming unit 6 to tamp the soil up and down by using a vertical ramming motor 61;
step four: tamping the lateral earth materials, and driving a lateral tamping plate 512 to tamp the lateral earth materials through a series of transmission by using a lateral tamping motor 51;
step five: the electric push rod 44 of the position fixing unit 4 is shortened to make the flat plate 1 movable, and then the ramming position is changed again by the moving unit 3.
It should be noted that the lateral tamping motor 51, the electric push rod one 44, the vertical tamping motor 61 and the electric push rod two 624 disclosed in the above embodiments are all controlled by an external PLC controller, the lateral tamping motor 51 and the vertical tamping motor 61 may both be three-phase asynchronous motors, specifically, a low-voltage high-power three-phase asynchronous motor of type Y3 series (IP55) of the wuxi huazhuan motor lten, the electric push rod one 44 and the electric push rod two 624 may both be gdp 15-x type electric push rods, and the PLC controller controls the lateral tamping motor 51, the electric push rod one 44, the vertical tamping motor 61 and the electric push rod two 624 to work by a method commonly used in the prior art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a mining area is restoreed with native material backfill tamping system which characterized in that: comprises a flat plate (1), a vertical plate (2), a moving unit (3), a position fixing unit (4), a lateral tamping unit (5) and a vertical tamping unit (6);
the bottom four corners of the flat plate (1) are respectively provided with a moving unit (3), wherein two moving units (3) are provided with a position fixing unit (4) for limiting the position movement, a vertical plate (2) is fixed in the middle of the bottom side of the flat plate (1), a vertical tamping unit (6) is installed on the side surface of the vertical plate (2), a soil tamping hammer (8) is installed on the vertical tamping unit (6), and the front end of the surface of the flat plate (1) is provided with a through groove (7);
the lateral tamping unit (5) comprises a lateral tamping motor (51), an inertia wheel disc (52), an inertia shaft (53), a first rotating rod (54), a longitudinal rod (55), a first pin shaft (56), a vertical rod (57), a rotating shaft (58), mounting blocks (59), rotating blocks (510), connecting rods (511), lateral tamping plates (512), a bottom cross rod (513), arc blocks (514) and reinforcing rods (515), wherein two corresponding mounting blocks (59) are fixed on two sides of the front end of the flat plate (1), the rotating blocks (510) are movably connected between the two mounting blocks (59) through the rotating shaft (58), the bottom of each rotating block (510) is connected with the lateral tamping plates (512) through the two connecting rods (511), the arc blocks (51) are fixed in the middle of the rear side of the lateral tamping plates (512), and the lateral tamping motor (51) is fixedly connected with one end of the through groove (7), a longitudinal rod (55) is fixed in the middle of the through groove (7), an output shaft of the lateral tamping motor (51) is connected with one end of an inertia shaft (53), an inertia wheel disc (52) is fixed in the middle of the inertia shaft (53), the other end of the inertia shaft (53) is rotatably connected with the middle of the longitudinal rod (55), the inertia shaft (53) penetrates through the longitudinal rod (55) and is fixedly connected with one end of a first rotating rod (54), a first pin shaft (56) perpendicular to the first rotating rod (54) is fixed on the side face of the other end of the first rotating rod (54), the first pin shaft (56) is movably connected with the top end of a vertical rod (57), the bottom end of the vertical rod (57) penetrates through the through groove (7) and is movably connected with one end of two bottom cross rods (513) at two sides respectively, the other end of the front bottom cross rod (513) is movably connected with the arc-shaped block (514), and the other end of the rear bottom cross rod (513) is movably connected with the bottom end of a reinforcing, and the top end of the reinforcing rod (515) is fixed at the bottom of the flat plate (1).
2. The earth backfill compaction system for mining area restoration according to claim 1, wherein: the movable unit (3) comprises supporting legs (31), wheel seats (33), wheel shafts (34) and movable wheels (35), the tops of the supporting legs (31) are fixed at four corners of the bottom of the flat plate (1), the bottom ends of the supporting legs (31) are fixedly provided with the inverted U-shaped wheel seats (33), and the wheel seats (33) are rotatably connected with the middle of the movable wheels (35) through the wheel shafts (34).
3. The earth backfill compaction system for mining area restoration according to claim 2, wherein: the moving unit (3) further comprises a rib plate (32), and a triangular rib plate (32) is fixed between the top side surface of the supporting leg (31) and the bottom surface of the flat plate (1).
4. The earth backfill compaction system for mining area restoration according to claim 3, wherein: position fixing unit (4) include L shaped plate (41), stopper (42), fixing base (43), electric putter (44), inserted bar (45) and spine (46), the bottom side of landing leg (31) is fixed with L shaped plate (41), the bottom outside of L shaped plate (41) is fixed with stopper (42), the top outside of L shaped plate (41) is fixed with fixing base (43), the top of electric putter (44) is connected to the bottom of fixing base (43), and the bottom mounting of electric putter (44) has inserted bar (45), inserted bar (45) pass spacing hole on stopper (42) and spine (46) are connected to the bottom.
5. The earth backfill compaction system for mining area restoration according to claim 1, wherein: the vertical compaction unit (6) comprises a vertical compaction motor (61), a driving gear (62), a driven gear (63), side sliding rails (64), a transverse sliding block (65), a vertical sliding plate (66), a sliding strip (67), a transverse sliding groove (68), a rotating disc (69) and a motor shaft (610), wherein the vertical compaction motor (61) is fixed on the front side of the vertical plate (2), the output shaft of the vertical compaction motor (61) is connected with the driving gear (62), the middle part of the vertical plate (2) is rotatably connected with the motor shaft (610), the driven gear (63) meshed with the driving gear (62) is fixed at the front end of the motor shaft (610), the vertical side sliding rails (64) are respectively arranged on two sides of the rear end surface of the vertical plate (2), the sliding strips (67) slidably connected with the side sliding rails (64) are arranged on two sides of the vertical sliding plate (66), and the transverse sliding groove (68) is formed in the middle part of the vertical sliding, the inboard horizontal sliding connection of horizontal spout (68) has horizontal slider (65), the circle logical groove has been seted up at the middle part of horizontal slider (65), and the circle is led to the inslot internal rotation and is connected with rolling disc (69), the rear end of motor shaft (610) and the eccentric position fixed connection of rolling disc (69), the bottom of perpendicular slide (66) is connected with rammer hammer (8).
6. The earth backfill compaction system for mining area restoration according to claim 1, wherein: the vertical tamping unit (6) comprises a vertical tamping motor (61), a fixing ring (611), two rotating rods (612), a movable rod (613), an upper movable rod (614), a lower movable rod (615) and a circular plate (618), the side surface of the vertical plate (2) is fixedly connected with the circular cylinder through the fixing ring (611), two circular plates (618) are arranged at the bottom side of the inner part of the circular cylinder, a sliding hole in each circular plate (618) is vertically and slidably connected with the movable column (615), the upper movable rod (614) and the lower movable rod (614) are fixed at the center of the top of the movable column (615), the vertical tamping motor (61) is fixed at the inner side of the top end of the circular cylinder, the output shaft of the vertical tamping motor (61) is fixedly connected with one end of the two rotating rods (612), the other end of the two rotating rods (612) is movably connected with one end of the movable rod (613), and the other end of the movable rod (613), the bottom end of the movable column (615) is connected with a rammer (8).
7. The earth backfill compaction system for mining area restoration according to claim 6, wherein: the vertical tamping unit (6) further comprises a spring (616) and a middle limiting ring (617), the middle limiting ring (617) is fixedly sleeved on the outer side of the middle of the movable column (615), and the middle limiting ring (617) is connected with the two circular plates (618) through the spring (616).
8. The earth backfill compaction system for mining area restoration according to claim 1, wherein: the vertical tamping unit (6) comprises a vertical tamping motor (61), a long shaft (621), a long rod (622), a short rod (623), an electric push rod II (624), a hinged support (625), a push rod fixing plate (626), a fixed longitudinal rod (627), a tamping rod (628), a friction wheel (629) and a tamping rod limiting ring (630), the long shaft (621) is fixed on the side surface of the vertical plate (2), the long shaft (621) is movably connected with one end of the long rod (622), the other end of the long rod (622) is fixedly connected with one end of the short rod (623), the other end of the short rod (623) is movably connected with the telescopic end of the electric push rod II (624), the fixed end of the electric push rod II (624) is movably connected with the side surface of the push rod fixing plate (626) through the hinged support (625), the fixing plate (626) is fixed on the side surface of the vertical plate (2), and the friction wheel (629) is rotatably connected at the joint of the long rod (622) and the short rod (623, the side of riser (2) still is fixed with vertical tamping motor (61), the output shaft of vertical tamping motor (61) has another friction pulley (629), and two friction pulley (629) levels correspond the setting, and is equipped with vertical tamping bar (628) between two friction pulleys (629), the side of riser (2) is fixed with tamping bar spacing ring (630) through fixed vertical pole (627), sliding connection about spacing hole on tamping bar spacing ring (630) and tamping bar (628), bottom fixed connection rammer (8) of tamping bar (628).
9. The earth backfill compaction system for mining area restoration according to claim 1, wherein: the vertical tamping unit (6) comprises a vertical tamping motor (61), an inverted U-shaped frame (631), a bottom sliding groove (632), a fixed transverse shaft (633), an upper eccentric gear (634), a movable transverse shaft (635), a lower eccentric gear (636), sliding rods (637), bottom connecting rods (638) and tamping rods (639), wherein the side surface of the vertical plate (2) is fixedly connected with the inverted U-shaped frame (631), the bottom sliding grooves (632) are formed in the lower sides of the two ends of the inverted U-shaped frame (631), the sliding rods (637) are respectively connected in the two bottom sliding grooves (632) in an up-and-down sliding mode, the top of each sliding rod (637) is connected with the top of the bottom sliding groove (632) through a tension spring, the bottom ends of the two sliding rods (637) are connected through the bottom connecting rod (638), the bottom center of the bottom connecting rod (638) is connected with a tamping hammer (8) through the tamping rods (639), and the top of the two sliding rods (637) is rotatably connected with, and the middle part of the movable transverse shaft (635) is fixedly connected with the eccentric position of the lower eccentric gear (636), the top of the inner side of the inverted U-shaped frame (631) is rotatably connected with a fixed transverse shaft (633), the fixed transverse shaft (633) is fixedly connected with the eccentric position of the upper eccentric gear (634), the upper eccentric gear (634) is meshed with the lower eccentric gear (636), and one end of the fixed transverse shaft (633) penetrates through one side of the inverted U-shaped frame (631) and is connected with the output shaft of the vertical tamping motor (61) fixed on the outer side of the inverted U-shaped frame (631).
10. The process of ramming in an earth backfill ramming system for mining area reclamation according to any one of claims 1 to 9, wherein: comprises the following steps;
the method comprises the following steps: moving the tamping device to a working position, and conveniently moving the tamping device to an area where soil is backfilled through a moving wheel (35) of a moving unit (3) at the bottom of the flat plate (1);
step two: the position is fixed, and an electric push rod I (44) of the position fixing unit (4) is controlled to extend, so that a spine (46) at the bottom of an inserting rod (45) is driven to be inserted into a soil layer, the position of the flat plate (1) is conveniently fixed, and the position is prevented from moving in the working process;
step three: tamping the soil on the lower side, and driving a soil tamping hammer (8) at the bottom of the vertical tamping unit (6) to reciprocate up and down by using a vertical tamping motor (61) to tamp the soil;
step four: tamping the lateral earth materials, and driving a lateral tamping plate (512) to tamp the lateral earth materials by a lateral tamping motor (51) through a series of transmission;
step five: the electric push rod (44) of the position fixing unit (4) is shortened, so that the flat plate (1) can move, and then the ramming position is changed again through the moving unit (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011266692.6A CN112392541B (en) | 2020-11-13 | 2020-11-13 | Soil material backfill tamping system and process for mining area restoration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011266692.6A CN112392541B (en) | 2020-11-13 | 2020-11-13 | Soil material backfill tamping system and process for mining area restoration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112392541A true CN112392541A (en) | 2021-02-23 |
| CN112392541B CN112392541B (en) | 2022-10-21 |
Family
ID=74599317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011266692.6A Active CN112392541B (en) | 2020-11-13 | 2020-11-13 | Soil material backfill tamping system and process for mining area restoration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112392541B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1363256A (en) * | 1970-11-04 | 1974-08-14 | Dow Chemical Co | Method of filling subterranean voids with a particulate material |
| CN107354934A (en) * | 2017-08-07 | 2017-11-17 | 吴佳锋 | A kind of soil tamping unit for building that can adjust compacting dynamics |
| CN107604895A (en) * | 2017-10-24 | 2018-01-19 | 王若云 | A kind of compacting prosthetic device of water conservancy side slope |
| CN108611952A (en) * | 2018-04-03 | 2018-10-02 | 郭志颖 | A kind of Construction of Civil Engineering road surface tamping unit driven based on disk |
| CN209082472U (en) * | 2018-10-24 | 2019-07-09 | 王乙童 | A kind of hydraulic engineering dykes and dams slope tamping unit |
-
2020
- 2020-11-13 CN CN202011266692.6A patent/CN112392541B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1363256A (en) * | 1970-11-04 | 1974-08-14 | Dow Chemical Co | Method of filling subterranean voids with a particulate material |
| CN107354934A (en) * | 2017-08-07 | 2017-11-17 | 吴佳锋 | A kind of soil tamping unit for building that can adjust compacting dynamics |
| CN107604895A (en) * | 2017-10-24 | 2018-01-19 | 王若云 | A kind of compacting prosthetic device of water conservancy side slope |
| CN108611952A (en) * | 2018-04-03 | 2018-10-02 | 郭志颖 | A kind of Construction of Civil Engineering road surface tamping unit driven based on disk |
| CN209082472U (en) * | 2018-10-24 | 2019-07-09 | 王乙童 | A kind of hydraulic engineering dykes and dams slope tamping unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112392541B (en) | 2022-10-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107604910B (en) | Rotary adjustable building pile driver | |
| CN107338780B (en) | Self-propelled ramming machine | |
| CN107587539B (en) | High-efficient device that levels of foundation for construction | |
| CN204040493U (en) | A kind of special mechanism of assembled concrete prefabricated wallboard | |
| CN112392541B (en) | Soil material backfill tamping system and process for mining area restoration | |
| CN117386403A (en) | Water conservancy tunnel lining cutting platform structure | |
| CN216094689U (en) | Spherical rolling screen with adjusting function | |
| CN201339155Y (en) | Concrete surface trimming machine among rail bearings | |
| CN112832188B (en) | Railway track cleaning device | |
| CN211948363U (en) | Rod pit tamping device for electric power engineering construction | |
| CN211948358U (en) | Tamping device for earthwork engineering | |
| CN214737179U (en) | Road compaction device is used in construction | |
| CN113322924A (en) | Ramming device for building construction | |
| CN212561049U (en) | Road surface leveling device for highway construction | |
| CN210679118U (en) | Supporting plate conveying mechanism for automatic brick making machine | |
| CN214033665U (en) | Ground tamping device for highway bridge construction | |
| CN113914876A (en) | Little shield tunnel backfilling device | |
| CN208440961U (en) | A kind of road maintenance engineering is with sticking up brick device | |
| CN107860241B (en) | Furnace ramming machine | |
| CN215105222U (en) | Blanking rammer compactor for constructional engineering | |
| CN217078434U (en) | Anti sideslip device is advanced in frame bridge top | |
| CN218116395U (en) | Red sandstone roadbed construction ramming compaction device | |
| CN214994242U (en) | Excavator chassis lifting device | |
| CN216838998U (en) | Connection structure of I-steel support reinforcing bar net | |
| CN216864734U (en) | Road surface tamping device for highway construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220929 Address after: 030000 Floor 1-3, No. 53, Shengli Street, Xinghualing District, Taiyuan, Shanxi Applicant after: Shanxi Chunhui engineering survey, design and Testing Institute Co.,Ltd. Address before: 222000 room 701, building 166-6, middle Hailian Road, Xinpu District, Lianyungang City, Jiangsu Province Applicant before: Wang Changhao |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |